Hi, I just bought a used 8700c from ebay. It is functioning well but the os is still 4.1.377, so I tried to upgraded it to 4.2. I am using DM 4.2 sp1 and the rom is a 4.2 rom from ATT.

When I tried to load the os to the phone, it stopped at the first step connect to the device rom/connecting to boot rom. The phone will not be connected and an error message with appear without defined error cause.

I wiped all the software on the bb and tried to do it all over again. The problem still exists. I tried DM 4.2, 4.3, 4.2 rom, 4.1 rom, 4.5 rom and 4.2 rom from different carrier, but I cannot fix it.

I'm pretty much a newbie to BB as well, but I had a similar problem. I too purchased my BB via eBay and was shipped a 4.1 OS/Applications. I spoke with RIM tech support and this was the following steps I was walked through to update my BB 8700g.

From there you should see a list of applications that need updating, and should be able to update through the website, instead of the Desktop Manager. I'm online at the moment, so if you have trouble with that, just hit a quick reply.

__________________April 27th 2009:My 1st Blackberry!Please be kind to a newby-Chris